Why I chose Archfiend to be the deck of the month?Many reasons to that, first archfiend is the oldest archetype in Yu-Gi-Oh and we can feel some nostalgia by using them.The main reason is Archfiend receive a lot of great support and are able to become really competitive.With some meta decks hit by the September ban list, Archfiend decks have a chance to become tier 2.Well, let's see the new Archfiend cards :

Archfiend Heiress : Awesome searcher in this deck, works well with foolish burial, and can be special summon by tour guide.This card can also search Archfiend's magic and trap cards.

Archfiend Cavalry : Great attack, and his effect allows you to reborn any Archfiend monster, but it can't attack the same turn.

Archfiend Commander : This card works well with Archfiend Heiress and Archfiend Cavalry because their effects activate when destroyed by Commander.Use him to make some XYZ lv 6.

Archfiend Emperor, the First Lord of Horror : Not only is he badass, but he also has a really good effect. He can be normal summoned and immediately destroy one card on the field. When he is in the graveyard, he can be special summon by Cavalrys' effect.

Archfiend Palabyrinth : A great field for the new card, a good attack boost and helps to make more XYZ monsters. Can be search by Archfiend Heiress.

Spells :-Allure Of Darkness : Lot of Dark monsters.-Foolish Burial : Combo with Heiress.-Falling Down : Awesome card that work with Archiend Palabyrinth too.-Creature Swap : Use it with Heiress or Emperor on your field.-Pandemonium : This old spell field still work well with the new cards.

Traps :-Archfiend's Roar : Awesome card with Heiress and Cavalry. Searched by Heiress.-Skill Drain : Great card in this deck, if you don't main it, side it !-Hate Buster : Great card that allow you to get the effect of Cavalry too.

All these suggestions are good but they luck something crucial. Karakuris. Make Karakuris the Deck Of The Month. Powerful, uncounterable(well, almost) and underrated as all hell. Plus, you can run a lot of different variations...